12781307

素因数分解:

$7^2\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{1031}}^1$

素因数の和:1079

約数の個数: 24

約数和(自身を含む): 16941312

約数和(自身を除く): 4160005

約数列:

[1, 7, 11, 23, 49, 77, 161, 253, 539, 1031, 1127, 1771, 7217, 11341, 12397, 23713, 50519, 79387, 165991, 260843, 555709, 1161937, 1825901, 12781307]

約数ペア:

[(1, 12781307), (7, 1825901), (11, 1161937), (23, 555709), (49, 260843), (77, 165991), (161, 79387), (253, 50519), (539, 23713), (1031, 12397), (1127, 11341), (1771, 7217)]